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| author | Taku Izumi <izumi.taku@jp.fujitsu.com> | 2015-09-17 18:09:37 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-09-17 18:09:37 +0300 |
| commit | b07461a8e45b7a62ef7fb46e4f6ada66f63406a8 (patch) | |
| tree | 12277d58e51673ad9f1679d44c3392f4af9c011b /include/linux | |
| parent | 6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f (diff) | |
| download | linux-b07461a8e45b7a62ef7fb46e4f6ada66f63406a8.tar.xz | |
PCI/AER: Clear error status registers during enumeration and restore
AER errors might be recorded when powering-on devices. These errors can be
ignored, so firmware usually clears them before the OS enumerates devices.
However, firmware is not involved when devices are added via hotplug, so
the OS may discover power-up errors that should be ignored. The same may
happen when powering up devices when resuming after suspend.
Clear the AER error status registers during enumeration and resume.
[bhelgaas: changelog, remove repetitive comments]
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/aer.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/aer.h b/include/linux/aer.h index 4fef65e57023..744b997d6a94 100644 --- a/include/linux/aer.h +++ b/include/linux/aer.h @@ -42,6 +42,7 @@ struct aer_capability_regs { int pci_enable_pcie_error_reporting(struct pci_dev *dev); int pci_disable_pcie_error_reporting(struct pci_dev *dev); int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev); +int pci_cleanup_aer_error_status_regs(struct pci_dev *dev); #else static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev) { @@ -55,6 +56,10 @@ static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev) { return -EINVAL; } +static inline int pci_cleanup_aer_error_status_regs(struct pci_dev *dev) +{ + return -EINVAL; +} #endif void cper_print_aer(struct pci_dev *dev, int cper_severity, |